Can you just open one of the doors when you're rooting around the back in the dark? That will turn on all the interior lights. Might be a little annoying but seemingly easier than wiring in additional lights.My 2023 has 4 rows of dome lights, the 4th row being just above the liftgate. It is simply not bright enough to illuminate the cargo area when the 3rd row is folded (practically all the time for me).